Former unified lightweight titleholder Juan Diaz won another bout against a C-level fighter on Saturday, this time defeating Carlos Cardenas at the Energy Arena in Laredo, Texas. Diaz, now 5-0 in his comeback, won by scores of 99-91, 98-92, and 97-93.

Two-division titlewinners Zab Judah and Paulie Malignaggi, who will fight in their native Brooklyn on Dec. 7, recently turned 36 and 33, respectively. When they meet on Dec. 7, the loser’s career may well be at an end.

Juan Diaz, who recently turned 30, fights unheralded Juan Santiago on Saturday on the Mike Alvarado-Ruslan Provodnikov undercard. The former unified lightweight titleholder, who took two years off, says he’s motivated again to regain world-class form and a world title.

Junior welterweight/lightweight contender Denis Shafikov, former lightweight titleholder Juan Diaz, and junior welterweight Jose Carlos Ramirez all won by knockout on Saturday night during a Top Rank-promoted event in Laredo, Texas.

Robert Guerrero on Floyd Mayweather: “You’ve got a lot of people out there who think that Floyd is like a God. He’s got everybody thinking that… nobody can beat him. But… being a big believer in God, there’s a blueprint for everybody.”